package thread;

public class SyncDemo2 {
    public static void main(String[] args) {
        Shop shop = new Shop();
        Thread t1 = new Thread("张三"){
            public void run(){
                shop.buy();
            }
        };
        Thread t2 = new Thread(()->{
            shop.buy();
        },"李四");
        t1.start();
        t2.start();
    }
}

class Shop{
    public void buy(){
        try{
            Thread t = Thread.currentThread();
            System.out.println(t.getName()+":正在挑衣服");
            Thread.sleep(5000);

            synchronized (this) {
                System.out.println(t.getName()+":正在试衣服");
                Thread.sleep(5000);
            }
            System.out.println(t.getName()+":结账离开");
        }catch (InterruptedException e){
        }
    }
}